Question

A rocket sled is propelled by a solid propellant rocket motor of 6.496×105 N thrust. If the sled travels 1.788×103 m while attaining a top speed of 8.520×102 m/s. What is its average acceleration? What is the mass of the rocket sled?

Answer 1

Hey dear,

◆ Answer-
a) a = 203 m/s^2
b) m = 3202 kg

◆ Explaination-
# Given-
F = 6.496×10^5 N
s = 1.788×10^3 m
u = 0 m/s
v = 8.52×10^2 m

# Solution-
a) Average acceleration is given by -
a =v^2 / 2s
a = (8.52×10^2)^2 / (2×1.788×10^3)
a = 203 m/s^2

b) Mass of the rocket sled is given by-
m = F/a
m = 6.496×10^5 / 203
m = 3202 kg

Hope this solved your query...